CN219333677U - Subway solution dehumidification liquid regeneration system - Google Patents
Subway solution dehumidification liquid regeneration system Download PDFInfo
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- CN219333677U CN219333677U CN202320141420.6U CN202320141420U CN219333677U CN 219333677 U CN219333677 U CN 219333677U CN 202320141420 U CN202320141420 U CN 202320141420U CN 219333677 U CN219333677 U CN 219333677U
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Abstract
The utility model particularly relates to a subway solution dehumidification liquid regeneration system which comprises a dilute solution tank, a vacuum solar concentrator, a concentrated solution tank and a plate heat exchanger which are sequentially connected through pipelines. The dilute solution outlet of the solution dehumidifying device is connected with the dilute solution inlet of the dilute solution tank, and the concentrated solution outlet of the plate heat exchanger is connected with the concentrated solution inlet of the solution dehumidifying device; a pressure reducing valve is arranged on a pipeline between the dilute solution tank and the vacuum solar concentrator. According to the utility model, the diluted solution dehumidified by the solution dehumidification device flows into the diluted solution tank, the diluted solution with uniform concentration enters the vacuum solar concentrator for heating concentration after standing, the concentrated solution after heating concentration is converged into the concentrated solution tank, the solution in the concentrated solution tank is sent to the plate heat exchanger, the plate heat exchanger is used for exchanging the heat of the concentrated solution, the station cooling tower is used for dissipating the heat, and the cooled concentrated solution is sent into the subway solution dehumidification device for dehumidification, so that the cost of the concentration device and the running cost are reduced.
Description
Technical Field
The utility model relates to the technical field of air conditioner dehumidification, in particular to a subway solution dehumidification liquid regeneration system.
Background
The public area and the equipment area of the underground station have large moisture content of outdoor air due to the structure moisture dissipation and personnel moisture dissipation, and the air in the station needs to be dehumidified in order to ensure that the relative humidity of the underground space is maintained in a reasonable range.
The conventional dehumidification scheme of the subway air conditioner ventilation system is that a fresh air dehumidification unit of a chilled water cooling dehumidification and temperature and humidity independent control system dehumidifies; adopting electric heating to dehumidify the solution; the concentrated solution was boiled using a gas boiler. The subway air conditioning system is characterized in that a low-temperature cold source is needed for cooling and dehumidifying by chilled water, a water chilling unit, a water pump and a cooling tower are needed to be arranged, and a larger environmental control machine room area is occupied; the fresh air dehumidifier unit with the independent temperature and humidity control system is adopted, a heat pump circulation section is arranged in the unit, the dehumidification solution is dehumidified in an evaporation section, a condensation section is concentrated, the equipment purchasing cost is high, and the area of an air conditioner room is occupied; the electric heating dehumidifying solution is adopted, so that the energy consumption is very high; the use of a gas boiler to boil the concentrated solution is also undesirable for safety reasons.
Disclosure of Invention
The utility model aims to provide a subway solution dehumidifying liquid regeneration system which is small in occupied area and low in equipment and operation cost.
In order to achieve the above purpose, the technical scheme of the utility model is that the subway solution dehumidifying liquid regeneration system comprises a dilute solution tank, a vacuum solar concentrator, a concentrated solution tank and a plate heat exchanger which are sequentially connected through pipelines, wherein a dilute solution outlet of a solution dehumidifying device is connected with a dilute solution inlet of the dilute solution tank, and a concentrated solution outlet of the plate heat exchanger is connected with a concentrated solution inlet of the solution dehumidifying device; and a pressure reducing valve is arranged on a pipeline between the dilute solution tank and the vacuum solar concentrator.
Further, an electric valve is further arranged on a pipeline between the dilute solution tank and the vacuum solar concentrator, and the electric valve is positioned between the pressure reducing valve and the dilute solution tank.
Further, the vacuum solar concentrator is connected with a vacuum pump.
Further, the vacuum solar concentrator is arranged on a side wall of the outdoor wind pavilion or at the top of an entrance and an exit of the subway station.
Further, a pressurizing pump is arranged on a pipeline between the concentrated solution tank and the plate heat exchanger.
Further, a cooling water inlet of the plate heat exchanger is connected with a water outlet of the cooling tower, and a cooling water outlet of the plate heat exchanger is connected with a water inlet of the cooling tower.
Furthermore, a cooling water pump is arranged on a pipeline between the cooling water inlet of the plate heat exchanger and the water outlet of the cooling tower.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The diluted solution dehumidified by the solution dehumidification equipment flows into the diluted solution tank, the diluted solution with uniform concentration and static through the diluted solution tank enters the vacuum solar concentrator for heating concentration, the concentrated solution after heating concentration is converged into the concentrated solution tank, the solution in the concentrated solution tank is sent to the plate heat exchanger, the heat of the concentrated solution is exchanged by the plate heat exchanger, the heat is dissipated by the station cooling tower, and the concentrated solution after cooling is sent to the subway solution dehumidification equipment for dehumidification; the dehumidified dilute solution can be concentrated and regenerated through the dilute solution tank, the vacuum solar concentrator, the concentrated solution tank and the plate heat exchanger, so that the cost of concentrating equipment and the running cost are reduced;
(2) In the utility model, the dilute solution tank, the concentrated solution tank and the plate heat exchanger are arranged in a machine room, and the vacuum solar concentrator is arranged outside a subway station, so that the volume of the vacuum solar concentrator is smaller than that of the existing solution dehumidifying fresh air handling unit;
(3) Because the pressure difference between the dilute solution tank and the vacuum solar concentrator is larger, the pressure of the liquid flowing into the vacuum solar concentrator is reduced by arranging the pressure reducing valve.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a subway solution dehumidification liquid regeneration system provided by an embodiment of the utility model;
in the figure: 1. a plate heat exchanger; 2. a pressurizing pump; 3. a concentrated solution tank; 4. a vacuum pump; 5. a vacuum solar concentrator; 6. a pressure reducing valve; 7. an electric valve; 8. a dilute solution tank; 9. and (5) a cooling water pump.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the embodiment of the utility model provides a subway solution dehumidification liquid regeneration system, which comprises a dilute solution tank 8, a vacuum solar concentrator 5, a concentrated solution tank 3 and a plate heat exchanger 1 which are sequentially connected through pipelines, wherein a dilute solution outlet of a solution dehumidification device is connected with a dilute solution inlet of the dilute solution tank 8, and a concentrated solution outlet of the plate heat exchanger 1 is connected with a concentrated solution inlet of the solution dehumidification device; a pressure reducing valve 6 is arranged on a pipeline between the dilute solution tank 8 and the vacuum solar concentrator 5.
In the embodiment, the diluted solution dehumidified by the solution dehumidification device flows into a diluted solution tank 8, the diluted solution tank 8 is used as a solution storage device and a pressure stabilizing device, the diluted solution with uniform concentration and static by the diluted solution tank 8 enters a vacuum solar concentrator 5 to be heated and concentrated, the concentrated solution after the heating and the concentration is converged into a concentrated solution tank 3, the solution in the concentrated solution tank 3 is sent to a plate heat exchanger 1, the heat of the concentrated solution is exchanged by the plate heat exchanger 1, and the concentrated solution after cooling is sent to the subway solution dehumidification device to be dehumidified; the concentrated regeneration of the dehumidified dilute solution can be realized through the dilute solution tank 8, the vacuum solar concentrator 5, the concentrated solution tank 3 and the plate heat exchanger 1, the cost of concentrating equipment and the running cost are reduced, the volume of the concentrated solution dehumidifying fresh air handling unit is smaller than that of the existing solution dehumidifying fresh air handling unit, and meanwhile, the pressure of the liquid flowing into the vacuum solar concentrator 5 is reduced by arranging the pressure reducing valve 6 due to the large pressure difference between the dilute solution tank 8 and the vacuum solar concentrator 5.
In order to prevent the liquid level in the dilute solution tank 8 from being lower than the design value, which leads to air entering the vacuum solar concentrator 5, the embodiment is provided with an electric valve 7 on a pipeline between the dilute solution tank 8 and the vacuum solar concentrator 5, and the electric valve 7 is positioned between the pressure reducing valve 6 and the dilute solution tank 8. The electric valve 7 is adjusted to be opened and closed according to the liquid level in the dilute solution tank 8, and when the liquid level in the dilute solution tank 8 is higher than a design value, the electric valve 7 is opened; when the liquid level in the dilute solution tank 8 is lower than the design value, the electric valve 7 is closed, a pipeline between the dilute solution tank 8 and the vacuum solar concentrator 5 is disconnected, and air is prevented from entering the vacuum solar concentrator 5.
Further, a vacuum pump 4 is connected to the vacuum solar concentrator 5. In this embodiment, the vacuum degree in the vacuum solar concentrator 5 is realized by the operation of the vacuum pump 4, the vacuum pump 4 is utilized to create a low-pressure working environment, the pressure in the vacuum solar concentrator 5 is set according to the boiling temperature and pressure corresponding to the design solution, specifically, the motor frequency in the vacuum pump 4 is adjusted, so that the vacuum degree in the vacuum solar concentrator 5 is adjusted, and the water vapor and air in the vacuum solar concentrator 5 are removed.
In this embodiment, the vacuum solar concentrator 5 sets a corresponding heat absorption area according to the mass of the concentrated solution, so that not only can solar energy be absorbed, but also the dilute solution can be boiled, part of water in the dilute solution is changed from a liquid state to a vapor state, and the dilute solution is pumped out through the vacuum pump 4, so that the concentration of the dilute solution is completed. Further, the vacuum solar concentrator 5 is arranged on a side wall of an outdoor wind pavilion or at the top of an entrance and an exit of a subway station, so that low-grade solar energy is more fully utilized as a heat source of the vacuum solar concentrator 5, high-grade heat energy is not used as the heat source, and the vacuum solar concentrator is more environment-friendly and reduces energy consumption. The dilute solution tank 8, the concentrated solution tank 3 and the plate heat exchanger 1 are arranged in a machine room and can be integrated into a whole.
Further, a pressurizing pump 2 is arranged on a pipeline between the concentrated solution tank 3 and the plate heat exchanger 1, the pressurizing pump 2 is arranged in a machine room, and the concentrated solution is conveyed into the plate heat exchanger 1 for heat exchange after being pressurized.
Further, the cooling water inlet of the plate heat exchanger 1 is connected with the water outlet of the cooling tower, and the cooling water outlet of the plate heat exchanger 1 is connected with the water inlet of the cooling tower. Further, a cooling water pump 9 is arranged on a pipeline between the cooling water inlet of the plate heat exchanger 1 and the water outlet of the cooling tower. The cooled cooling water is pressurized by a cooling water pump 9 and sent into the plate heat exchanger 1, and is sent to a cooling tower after heat exchange and temperature rise, and the heat is dissipated through the cooling tower, so that cooling and heat dissipation circulation is completed. The cooling tower is arranged outside the subway station, cooling heat is discharged through the cooling tower outside the subway station, and cannot be scattered into the heat station, so that ventilation energy consumption is reduced.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (7)
1. A subway solution dehumidification liquid regeneration system is characterized in that: the device comprises a dilute solution tank, a vacuum solar concentrator, a concentrated solution tank and a plate heat exchanger which are sequentially connected through pipelines, wherein a dilute solution outlet of a solution dehumidifying device is connected with a dilute solution inlet of the dilute solution tank, and a concentrated solution outlet of the plate heat exchanger is connected with a concentrated solution inlet of the solution dehumidifying device; and a pressure reducing valve is arranged on a pipeline between the dilute solution tank and the vacuum solar concentrator.
2. The subway solution dehumidification liquid regeneration system as set forth in claim 1, wherein: an electric valve is further arranged on a pipeline between the dilute solution tank and the vacuum solar concentrator, and the electric valve is positioned between the pressure reducing valve and the dilute solution tank.
3. The subway solution dehumidification liquid regeneration system as set forth in claim 1, wherein: the vacuum solar concentrator is connected with a vacuum pump.
4. The subway solution dehumidification liquid regeneration system as set forth in claim 1, wherein: the vacuum solar concentrator is arranged on the side wall of the outdoor wind pavilion or the top of the subway station entrance.
5. The subway solution dehumidification liquid regeneration system as set forth in claim 1, wherein: and a pressurizing pump is arranged on a pipeline between the concentrated solution tank and the plate heat exchanger.
6. The subway solution dehumidification liquid regeneration system as set forth in claim 1, wherein: the cooling water inlet of the plate heat exchanger is connected with the water outlet of the cooling tower, and the cooling water outlet of the plate heat exchanger is connected with the water inlet of the cooling tower.
7. The subway solution dehumidifying liquid recycling system according to claim 6, wherein: and a cooling water pump is arranged on a pipeline between the cooling water inlet of the plate heat exchanger and the water outlet of the cooling tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320141420.6U CN219333677U (en) | 2023-02-07 | 2023-02-07 | Subway solution dehumidification liquid regeneration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320141420.6U CN219333677U (en) | 2023-02-07 | 2023-02-07 | Subway solution dehumidification liquid regeneration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219333677U true CN219333677U (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320141420.6U Active CN219333677U (en) | 2023-02-07 | 2023-02-07 | Subway solution dehumidification liquid regeneration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219333677U (en) |
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2023
- 2023-02-07 CN CN202320141420.6U patent/CN219333677U/en active Active
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